diff --git a/htdocs/core/modules/modMailmanSpip.class.php b/htdocs/core/modules/modMailmanSpip.class.php
index d122a4bb9dc7827786e68aec24519e9f65321e1e..e56057bd3349e1802aa8f2f6a90ce137f84cdae7 100644
--- a/htdocs/core/modules/modMailmanSpip.class.php
+++ b/htdocs/core/modules/modMailmanSpip.class.php
@@ -63,6 +63,12 @@ class modMailmanSpip extends DolibarrModules
 
 		// Config pages
 		$this->config_page_url = array('mailman.php@adherents');
+
+		// Constants
+		$this->const = array();
+		$this->const[1] = array("ADHERENT_MAILMAN_UNSUB_URL","chaine","http://lists.domain.com/cgi-bin/mailman/admin/%LISTE%/members?adminpw=%MAILMAN_ADMINPW%&user=%EMAIL%","Url de désinscription aux listes mailman");
+		$this->const[2] = array("ADHERENT_MAILMAN_URL","chaine","http://lists.domain.com/cgi-bin/mailman/admin/%LISTE%/members?adminpw=%MAILMAN_ADMINPW%&send_welcome_msg_to_this_batch=1&subscribees=%EMAIL%","Url pour les inscriptions mailman");
+		$this->const[3] = array("ADHERENT_MAILMAN_LISTS","chaine","","Mailing-list to subscribe new members to");
 		
 		// Boxes
 		$this->boxes = array();